@book{352717,
	author = {Davis, Lois M.;Pollard, Michael;Goulka, Jeremiah;Mack, Katherine;Lundberg, Russell},
	title = {The Role of the United States Postal Service in Public Safety and Security},
	publisher = {RAND Corporation},
	year = {2008},
	url = {www.jstor.org/stable/10.7249/mg800usps}
}